Elevator control device

Abstract

The invention provides an elevator control device, which can control resonance of elevator cords occurred when long period vibration is generated in a building installed with elevator, and can avoid elevator cords from contacting with the well or hooking on equipments by controlling resonance of elevator cords. The inventive elevator control device is provided with an inclination detecting unit in the elevator installed with cords for ascending and descending the elevator car and the counter-weight, the inclination detecting unit is arranged on the fixed part of the cord end and used for detecting inclination of the fixed part of the cord end.

Description

technical field [0001] The present invention relates to elevator controls. Background technique [0002] As for the conventional elevator control device for suppressing the sway of the elevator rope, the following structure is known: the car frame of the car is suspended on one end side of the rope wound on the traction machine, and the other end side of the rope is suspended. Focusing on the counterweight, this elevator is equipped with a sway suppression device for suppressing the lateral sway vibration of the rope, which is inserted through the rope and fixed to the car frame (for example, refer to Patent Document 1). [0003] [Patent Document 1] Japanese Patent Laid-Open No. 2006-193256 [0004] It is known that the first-order natural period of a high-rise building whose height (H) exceeds 60 m varies with the structure of the building, but is approximately (H[m] / 1[m])×0.025[sec] ( For example, if the building height (H) is 100m, the first-order natural period is abou...

AI Technical Summary

Problems solved by technology

[0005] When high-rise buildings suffer from long-period earthquakes and strong winds, since they continue to sway in the horizontal direction with the first-order natural period, the machine rooms for accommodating elevator traction machines and the like on the top of the building are continuously applied with long-period When the natural period of the building is close to the natural period of the rope, the rope resonates and swings greatly, which may cause problems of contact or hooking with the hoistway

[0006] In addition, when the resonance of the elevator rope occurs, there is a possibility that the elevator rope will come into contact with the hoistway, the elevator rope will be caught on equipment such as the floor stop board (implantation platter) installed in the hoistway, and it may induce Problems such as damage to equipment such as floor docking boards

[0007] In addition, in the conventional elevator control device for suppressing swaying of elevator ropes disclosed in Patent Document 1, the swaying suppressing device provided for suppressing the lateral swaying vibration of the rope is formed in a structure arranged on the rope end fixing portion, but the length of the rope When periodic vibration resonates and a standing wave is formed on the rope, the end of the rope generally becomes a node of the standing wave, so the amplitude of the rope end is small, so there is a problem that it is difficult to obtain a large vibration suppression effect

Images